提交 86bc060d 编写于 作者: R root

add dataset base class

上级 3b571aec
......@@ -12,5 +12,6 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from .dataset import Dataset
from .optic_disc_seg import OpticDiscSeg
from .cityscapes import Cityscapes
......@@ -14,8 +14,7 @@
import os
from paddle.fluid.io import Dataset
from dataset import Dataset
from utils.download import download_file_and_uncompress
DATA_HOME = os.path.expanduser('~/.cache/paddle/dataset')
......@@ -70,16 +69,3 @@ class Cityscapes(Dataset):
image_path = os.path.join(self.data_dir, items[0])
grt_path = os.path.join(self.data_dir, items[1])
self.file_list.append([image_path, grt_path])
def __getitem__(self, idx):
image_path, grt_path = self.file_list[idx]
im, im_info, label = self.transforms(im=image_path, label=grt_path)
if self.mode == 'train':
return im, label
elif self.mode == 'eval':
return im, label
if self.mode == 'test':
return im, im_info, image_path
def __len__(self):
return len(self.file_list)
# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
from paddle.fluid.io import Dataset
class Dataset(Dataset):
def __init__(self,
data_dir,
num_classes,
train_list=None,
val_list=None,
test_list=None,
separator=' ',
transforms=None,
mode='train'):
self.data_dir = data_dir
self.transforms = transforms
self.file_list = list()
self.mode = mode
self.num_classes = num_classes
if mode.lower() not in ['train', 'eval', 'test']:
raise Exception(
"mode should be 'train', 'eval' or 'test', but got {}.".format(
mode))
if self.transforms is None:
raise Exception("transform is necessary, but it is None.")
self.data_dir = data_dir
if mode == 'train':
if train_list is None:
raise Exception(
'When mode is "train", train_list is need, but it is None.')
elif not os.path.exists(train_list):
raise Exception(
'train_list is not found: {}'.format(train_list))
else:
file_list = train_list
elif mode == 'eval':
if val_list is None:
raise Exception(
'When mode is "eval", val_list is need, but it is None.')
elif not os.path.exists(val_list):
raise Exception('val_list is not found: {}'.format(val_list))
else:
file_list = val_list
else:
if test_list is None:
raise Exception(
'When mode is "test", test_list is need, but it is None.')
elif not os.path.exists(test_list):
raise Exception('test_list is not found: {}'.format(test_list))
else:
file_list = test_list
with open(file_list, 'r') as f:
for line in f:
items = line.strip().split(separator)
if len(items) != 2:
if mode == 'train' or mode == 'eval':
raise Exception(
"File list format incorrect! It should be"
" image_name{}label_name\\n".format(separator))
image_path = os.path.join(self.data_dir, items[0])
grt_path = None
else:
image_path = os.path.join(self.data_dir, items[0])
grt_path = os.path.join(self.data_dir, items[1])
self.file_list.append([image_path, grt_path])
def __getitem__(self, idx):
image_path, grt_path = self.file_list[idx]
im, im_info, label = self.transforms(im=image_path, label=grt_path)
if self.mode == 'train':
return im, label
elif self.mode == 'eval':
return im, label
if self.mode == 'test':
return im, im_info, image_path
def __len__(self):
return len(self.file_list)
......@@ -14,8 +14,7 @@
import os
from paddle.fluid.io import Dataset
from dataset import Dataset
from utils.download import download_file_and_uncompress
DATA_HOME = os.path.expanduser('~/.cache/paddle/dataset')
......@@ -70,16 +69,3 @@ class OpticDiscSeg(Dataset):
image_path = os.path.join(self.data_dir, items[0])
grt_path = os.path.join(self.data_dir, items[1])
self.file_list.append([image_path, grt_path])
def __getitem__(self, idx):
image_path, grt_path = self.file_list[idx]
im, im_info, label = self.transforms(im=image_path, label=grt_path)
if self.mode == 'train':
return im, label
elif self.mode == 'eval':
return im, label
if self.mode == 'test':
return im, im_info, image_path
def __len__(self):
return len(self.file_list)
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